b. a psychological factor.
c. a biological factor.
d. a life-cycle factor.
What can we conclude about the development of dispositional traits across adulthood?
a. Personality traits remain stable when the data are averaged across many different
kinds of people.
b. Personality traits remain stable but only when examining specific personality traits in
specific kinds of people.
c. When the data are averaged across many different kinds of people, the research
overwhelmingly points to personality change over time.
d. It has become apparent that we do not have adequate measures to assess personality
trait stability and change over time.
Research findings that indicate differences between older and younger adults with
issues such as memory, attentional capacity, and processing speed must be interpreted
carefully. Why?
a. Memory tests are biased against younger adults.
b. A test that measures memory in a younger adult will not be valid for testing an older